Historic DNS Timeline
Shows every DNS record the platform has observed over time (the DNS audit appends, it doesn't overwrite). For deep historic passive DNS beyond your own observations, add a provider like SecurityTrails/WhoisXML (API key).
Observed Records for authstep91-booking.com
| Type | Value | TTL | First/Last Observed |
|---|---|---|---|
| A | 104.21.55.167 |
300 | 2026-08-11 22:03:13 |
| A | 172.67.149.86 |
300 | 2026-08-11 22:03:13 |
| AAAA | 2606:4700:3036::6815:37a7 |
300 | 2026-08-11 22:03:13 |
| AAAA | 2606:4700:3033::ac43:9556 |
300 | 2026-08-11 22:03:13 |
| NS | remy.ns.cloudflare.com |
21599 | 2026-08-11 22:03:13 |
| NS | elisa.ns.cloudflare.com |
21599 | 2026-08-11 22:03:13 |
| SOA | elisa.ns.cloudflare.com |
1800 | 2026-08-11 22:03:13 |
Most-Observed Hosts
| Host | Records | Last Seen |
|---|---|---|
aaa.com |
102 | 3d ago |
cisco.com |
99 | 3h ago |
fedex.com |
82 | 3d ago |
amazon.com |
70 | 4h ago |
kering.com |
65 | 14h ago |
prudential.com |
64 | 3d ago |
marriott.com |
62 | 3d ago |
pb.com |
60 | 1d ago |
udemy.com |
60 | 2d ago |
ringcentral.com |
57 | 3d ago |
zoominfo.com |
52 | 5d ago |
appen.com |
51 | 1d ago |
185.220.101.25 |
50 | 5d ago |
185.220.101.19 |
50 | 5d ago |
185.220.101.23 |
50 | 6d ago |
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